Coolant where is it
#1
Pro
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Coolant where is it
About every 500 miles I need to refill my coolant. Where is it going? They did a pressure check and it was fine. Wheat needs attention?
#3
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If it's leaking that much but it's not in the combustion chamber or oil you should be able to find it on the ground or smell it.
I agree with Tinkers by starting at the water pump. LS water pumps kinda suck.
A leak that bad should be leaving puddles on the floor or ground IMO.
I agree with Tinkers by starting at the water pump. LS water pumps kinda suck.
A leak that bad should be leaving puddles on the floor or ground IMO.
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#8
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Wow, yeah! I would have to think that much missing is going to show up on the ground for sure if a component was leaking. Can you smell the antifreeze at all when you open the hood or whenever you walk around the car? I know you said the pressure check was good but these cars have an issue with the coolant tank getting rotten too. How old is your tank? You have any smoke coming out the tailpipes? You have an signs of anything on the rear-end cover? I know when my tank was leaking I'd get spots on my cover from the coolant. Took me a while to figure that one out.
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#10
How much is a "jug"???! I'll make this as short as possible (1st time for everything!!).......
I was losing an unknown amount of coolant each time I drove my car. Marked the reservoir with a pencil. Drove it 120 miles, checked the next day, and reservoir was down a good 2-3"!! I was getting ready to pull the heads and buy a couple head gaskets when I saw the problem. The original spring clamp on the upper radiator hose, where it clamped to the water pump, had a red drop under the hose on the clamp. Apparently, the tension was no longer good enough to seal coolant when fully hot. There was no coolant under the vehicle; it evaporated quickly driving down the road. A buck and half later, spent on a new, conventional hose clamp, and no more coolant loss. SO....It doesn't ALWAYS end up on the ground, or in the oil. Make sure ALL your clamps are still good-AND tight!!!! Hope this helps.....
I was losing an unknown amount of coolant each time I drove my car. Marked the reservoir with a pencil. Drove it 120 miles, checked the next day, and reservoir was down a good 2-3"!! I was getting ready to pull the heads and buy a couple head gaskets when I saw the problem. The original spring clamp on the upper radiator hose, where it clamped to the water pump, had a red drop under the hose on the clamp. Apparently, the tension was no longer good enough to seal coolant when fully hot. There was no coolant under the vehicle; it evaporated quickly driving down the road. A buck and half later, spent on a new, conventional hose clamp, and no more coolant loss. SO....It doesn't ALWAYS end up on the ground, or in the oil. Make sure ALL your clamps are still good-AND tight!!!! Hope this helps.....
Last edited by grinder11; 04-13-2021 at 03:31 PM.
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Water pump is the usual suspect. They are a weak spot on LS engines.
#16
Safety Car
First of all don't take it to a mechanic yet. What side of the car is the puddle? Middle drivers or passenger side. Is it up front or under where the sits are . maybe we can boil it down so the mechanic doesn't see a sucker coming a mile away. Go in with some knowledge and they won't hit you as hard.
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Mr. Black (04-13-2021)
#17
I didn't, either. No puddle, either. It was evaporating before it could drip, and since it was a pressure leak from the pump, it didn't leak unless the engine was running at 2000+rpm.....
#19
Pro
Check the small crossover tube that runs between the heads under the throttle body. A leak there will deposit it on the engine, and it will likely evaporate most of it before it reaches the ground, especially if you're out driving it.
#20
Safety Car
to me that's seems like the water pump bit there are hoses u can check. Like the one right under the TB there's a 1/4 hose and the hoses from the radiator. Have you checked those. The pump will be a bit Harter to see because it's under the pump where the pulley is. I would jack the front t of the car up support with Jack stands and let it run for how long it takes tell u see it leaking. Then u can spot the leak. Is u have to get under the car if u feel comfortable doing.